Aider
#3 in IDE Extensions & Copilotsaider · since 2023-05-09 · 12× · last seen Jun 30, 2026
20
Momentum
Aider is an open-source, terminal-based AI pair programming tool that edits code in local Git repositories via a chat interface. It is model-agnostic and supports a wide range of cloud and local LLMs (including Claude, GPT-4o, DeepSeek, Gemini, Ollama). Git is treated as a first-class citizen: every change is automatically committed. It runs primarily in the terminal but can also be used inside IDEs and via an experimental browser UI.
Momentum trend
04.04.03.07.
Features
| Base Model | Model-agnostic (BYOK): recommended Claude 3.7 Sonnet, DeepSeek R1 & Chat V3, OpenAI o1 / o3-mini / GPT-4o; supports nearly all LLMs incl. local models via Ollama/LM Studio |
| License | Apache 2.0 |
| Platform | macOS, Linux, Windows (Python CLI; pip install) |
| Price | Free (open source, BYOK – Bring Your Own API Key); costs only arise from the chosen LLM provider |
| Release Date | May 9, 2023 (first GitHub repository commit) |
| Interface (IDE/CLI/Web) | CLI (terminal, primary); IDE integration via watch mode (AI comments in any editor/IDE); experimental browser UI (localhost) |
| Supported Languages | Over 100 programming languages, incl. Python, JavaScript, TypeScript, Rust, Ruby, Go, C++, PHP, HTML, CSS, and many more |